Eric Baccega / Sulphur formation, Dallol Volcano, Danakil Depression, Ethiopia, March 2015.
01516026
Eric Baccega / Dallol hot spring with salt concretions coloured by sulphur, potassium and iron, Dallol Volcano, Danakil Depression, Ethiopia, March 2015.
01516025
Eric Baccega / Dallol hot spring with salt concretions coloured by sulphur, potassium and iron, Dallol Volcano, Danakil Depression, Ethiopia, March 2015.
01516022
Eric Baccega / Dallol hot spring with salt concretions coloured by sulphur, potassium and iron, Dallol Volcano, Danakil Depression, Ethiopia, March 2015.
01513266
Ross Hoddinott / Ice on black volcanic sand beach with waves, Jokulsarlon, Southeast Iceland, February.
Ross Hoddinott / Basalt columns at Vik, the southernmost village in Iceland. February 2014.
01300690
Floris van Breugel / A colorful explosion of rocks embedded in three feet of permanent cave ice deep in a lava tube cave (illuminated with a flashlight in the utter darkness.) Lava Beds National Monument, Northern Califor...